Disclaimer: I don't own Reborn or Undertale but I feel awful lot like I'd want to be there some days.
A.N. You know when you get smacked by inspiration so hard that you can hardly breath unless you work on it? Yea. The parallels between the series are pretty fantastic.
At Vongola HQ, came chaos, upon chaos. The first sign came when Reborn, of all people, fell to his knees, still somehow became taller, as the yellow pacifier shattered. He had come on a favor, as Timeteo had asked him for advice, along with Iemitsu, about the visit to the CEDEF leaders home, and flame active child.
But the pain that wracked through his body... his smothered scream was drown out by Iemitsu's horrified shock, his cell rung, and the information trickled in. Nana had contacted him through the emergency routes, the terror in her voice as she told him of his child's disappearance in a burning pillar of multicolor flames.
Timeteo's intuition flared in warning, and obliging it, he brought up his hand, his nerves fried as he watched the Vongola sky ring disappear from from his hand, and felt the flames receded from his body, an empty feeling of the harmony leaving him.
In areas all over the world the flames trickled away. The night flames left the Vendice, leaving only drained humans behind. Byakuran, a child himself in body, but tormented with his ability, sighed in relief as the knowing left him, leaving just a child and enough knowing to remember the feeling of a young sky taking away his burden, knowing enough to know it happened yet again.
Aria touched her stomach in relief, flashing Gamma a shocked but happy smile.
The Estereno's equipment failed in their flame driven capabilities, and the distortions left by the mafia boss, a crazed lunatic mist, disappeared. The scientists rebelled, taking the experiments and fleeing to the relative safety of obscurity.
Around the world the Arcobaleno were freed, the bounds of flames to the cruelty of the world left. A ghost escaped his torment, returning to his Julia, and a old, bitter, True Human that went by the name of Kawahira and Checkerface both, felt the responsibility leave his shoulder, with a sound that was both a curse and praise exhaled in the lessening of the pressure.
Around the world repercussions were felt. Personalities changed, there was loss and there would be great victory.
...and in a bed of yellow flowers, a toddler sized brunette with permanently glowing orange eyes sat up, the orange, lit pacifier swinging around his neck.
"Hi! I'm Flowey!" he was greeted, and Tsuna turned around, startled, meeting the equally startled eyes of a yellow, anthropomorphic flower.
A.N. I know there are a lot of typos. Please point them out and I will try to fix them later. I literally can't stop typing right now. There should be a chapter following this one in a few seconds but they will be drabble length with POV leaps.